Björn Ulvaeus was a part of a Swedish pop group, formed in Stockholm in 1972, as well as co-producer on the film "Mamma Mia!" with who?
Benny Andersson
-1
Section::::Abstract.
ABBA
880
-1
Section::::Abstract.
Björn Ulvaeus
3740
-1
Section::::Abstract.
Björn Ulvaeus
3740
-1
Section::::Abstract.
Björn Ulvaeus
3740